EP1542004B1 - Procédé et dispositif pour l'éxamination non-destructive, ultrasonore des pièces symétriques rotatives - Google Patents

Procédé et dispositif pour l'éxamination non-destructive, ultrasonore des pièces symétriques rotatives Download PDF

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Publication number
EP1542004B1
EP1542004B1 EP04023873A EP04023873A EP1542004B1 EP 1542004 B1 EP1542004 B1 EP 1542004B1 EP 04023873 A EP04023873 A EP 04023873A EP 04023873 A EP04023873 A EP 04023873A EP 1542004 B1 EP1542004 B1 EP 1542004B1
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EP
European Patent Office
Prior art keywords
work pieces
transport
equipment
workpieces
rollers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP04023873A
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German (de)
English (en)
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EP1542004A1 (fr
Inventor
Renate Brand
Anette Madinger
Jürgen Madinger
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Individual
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Individual
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Priority claimed from DE2003157596 external-priority patent/DE10357596B3/de
Priority claimed from DE200410023871 external-priority patent/DE102004023871A1/de
Application filed by Individual filed Critical Individual
Publication of EP1542004A1 publication Critical patent/EP1542004A1/fr
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
    • G01N29/27—Arrangements for orientation or scanning by relative movement of the head and the sensor by moving the material relative to a stationary sensor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/225—Supports, positioning or alignment in moving situation

Definitions

  • the invention relates to a method and a device for the non-destructive testing of rotationally symmetrical workpieces according to the preamble of claims 1 and 14.
  • the ultrasonic test as for example from the EP 0 420 639 A2 is known, enables detection of both near-surface and enclosed in the workpiece error.
  • each workpiece to be tested is clamped or inserted in a rotary device and subsequently rotated, for example, according to the ultrasonic pulse echo method, tested.
  • Such an ultrasonic test is extremely sensitive. An interpretation of the results obtained is sometimes difficult.
  • the piecewise examination of the workpieces requires a high cost and time.
  • the object of the invention is to eliminate the disadvantages of the prior art.
  • a method and a device are to be specified with which the most efficient possible testing of a plurality of workpieces by means of ultrasound methods is possible. After a further goal, the ultrasound test should be carried out as much as possible so that it is possible reliably and reliably to distinguish faulty workpieces from faultless ones.
  • the workpieces are transported in a conveyor trough formed by two juxtaposed rollers, wherein the rollers are driven in the same direction by means of the rotation means, wherein an inclination and / or spreading of the roller axes is adjusted so that the workpieces with a predetermined speed along the transport path to be transported.
  • the workpieces are transported by means of a transport device along a transport path. They are rotated around their axis during transport. As a result, they may be routed past an ultrasonic testing device during transport and on both surface and inside of the workpieces included errors are checked.
  • the transport of the workpieces takes place in a liquid. Ultrasonic testing carried out using liquid as the coupling medium enables reliable and reliable detection of defective workpieces.
  • the proposed method is suitable at least for a semi-automatic testing of workpieces by means of ultrasound.
  • the workpieces are fed gravitationally. They can be supplied, for example, rolling in a sloping obliquely to the transport device channel. In this case, a new workpiece always reaches the transport device when a previously supplied workpiece has already covered a path corresponding to its length on the transport path.
  • ⁇ workpieces are simultaneously transported in a transport channel provided with a rotation device.
  • the workpieces can be rotated simultaneously and in the same direction by means of the rotation device. This allows, for example, a simultaneous examination of several located in the conveyor trough workpieces.
  • the workpieces can be tested according to different criteria.
  • the proposed method is particularly efficient. In particular, it is no longer necessary to clamp each workpiece separately in a rotary device, to subsequently check it and then to remove it again from the rotary device.
  • the workpieces are cyclically transported along the transport path. This facilitates the process management. Workpieces identified as faulty can be assigned to a specific cycle and as a result simply be singled out. When using a cyclic feed the workpieces remain for a predetermined period in the transport device at a specific location. They are rotated at this location and can be tested there.
  • the thrust means may in particular be designed so that it corresponds to the axial length of the workpieces.
  • the workpieces can be securely and reliably held in place by the feed means even with a rotation in the transport direction. This allows a particularly reliable test.
  • the proposed method is particularly suitable for rollers with a convex or convex lateral surface.
  • the workpieces are transported along the transport path in a direction parallel to the axial direction of the workpieces transport direction.
  • the transport channel may be formed by two juxtaposed rotating rollers arranged side by side.
  • transport channel is to be understood in the context of the present invention in general terms. Such a transport channel does not have to have a closed bottom, but only similar to a channel fulfill a transport function along a transport path.
  • the workpieces can be transported substantially coaxially to the rollers in the transport channel.
  • the workpieces are friction against the rollers and are rotated by the rotation during transport about the axis.
  • a tilt and / or spread of the roll axes is adjusted so that the workpieces are transported at a predetermined speed along the transport path.
  • the inclination and / or the spread of the roll axes is chosen so that the overall result is an inclination of the transport channel formed between the rollers of a feed to a discharge of the workpieces.
  • the proposed transport device is simple. It is not susceptible to interference and, in particular, can be easily operated in a liquid even when submerged.
  • the workpieces can also be rotated about their axis by means of a conveyor belt forming a wall of the conveyor trough.
  • the axis of the rotationally symmetrical workpieces is perpendicular to the transport direction.
  • the transport is carried out in this embodiment expediently intermittently by means of engaging in the conveyor trough feed means.
  • the thrust means in this case hold the rotating workpieces each for a certain period of time in a predetermined position in the transport direction. As long as the workpieces are held in this position For example, testing is possible by means of ultrasonic devices which are moved along a surface of the workpiece to be tested.
  • the workpieces are checked for surface defects on the transport path by means of a first ultrasonic testing device.
  • the workpieces can also be checked for errors trapped in the workpiece by means of a second ultrasonic testing device. With the proposed 2-fold test, all relevant errors of the workpiece can be detected reliably and reliably.
  • faulty workpieces are identified and subsequently rejected.
  • Such a separation of the separated workpieces depending on the type of the identified error may be advantageous in terms of quality assurance measures.
  • the workpieces are guided away by means of a, preferably electric motor driven, conveying device and lifted out of the liquid.
  • a, preferably electric motor driven, conveying device Conveniently, the identified as defective workpieces are discarded after lifting out of the liquid. This facilitates the handling of the separated workpieces.
  • a device for nondestructive testing rotationally symmetrical workpieces that the transport device two side by side arranged, having a conveyor trough forming rollers, and that the rotation means is a drive means for the same direction of rotation of the rollers, wherein the roller axes have an adjustable inclination and / or spreading.
  • a transport device provided in a container for receiving a liquid for transporting the workpieces along a transport path, a rotation device for rotating the workpieces about their axis and a device for testing the rotating workpieces by means of ultrasound.
  • the proposed device allows efficient ultrasonic testing of a variety of workpieces.
  • the ultrasonic test can be carried out partially or fully automatically. For the first time, routine ultrasonic testing in the mass production of workpieces is possible.
  • a device for successively feeding the workpieces to the transport device and / or a device for removing the workpieces from the transport device is provided.
  • the proposed devices enable automated operation.
  • the device for feeding the workpieces has a channel sloping transversely to the transport device.
  • the channel may have an adjustable width, so that rolls of a different length can be fed rolling to the transport device.
  • a conveying trough provided with the rotation device is provided downstream of the device for successive feeding.
  • the conveyor trough can be designed so that at the same time a plurality of workpieces are receivable.
  • the rotation device is expediently designed so that the workpieces are rotated simultaneously and in the same direction. This allows a uniform and simultaneous testing of multiple workpieces.
  • the proposed device is particularly simple. It is necessary for the rotation of the workpieces not a separate rotation device for each workpiece.
  • a device for cyclically transporting the workpieces along the transport path is provided. This makes it possible to keep the workpieces rotating for the duration of the test at a certain predetermined location on the transport route. This makes it possible, in particular, to test non-cylindrical rotationally symmetrical workpieces, for example barrel rollers.
  • the means for intermittent transport in the conveyor trough engaging pushing means may be chosen such that it corresponds to the axial length of the workpieces to be tested.
  • barrel rollers can be kept rotating in a predetermined position for carrying out the test on the transport route.
  • the device for intermittent transport expediently has a single drive device. This ensures that all workpieces in the same cycle and at the same speed be transported intermittently on the transport route.
  • the transport device has two juxtaposed, a transport chute forming, rollers.
  • a provided between the peripheral surfaces of the rollers distance is adjustable.
  • the distance selected between the circumferential surfaces of the rollers is dimensioned such that it is in any case smaller than the diameter of the workpieces to be transported.
  • An inclination and / or spreading of the roll axes adjustable.
  • a drive device is provided for rotating the rollers in the same direction. It may expediently be a arranged outside the container electric motor, which is connected via a belt with provided on the rollers drive pulleys.
  • the transport device may also have a conveyor belt.
  • the conveyor belt is expediently used for the simultaneous and co-rotation of a plurality of workpieces located on the transport path.
  • the workpieces are in this case with their axis of rotation perpendicular to the transport direction.
  • the conveyor trough may be formed of two obliquely standing walls, wherein one of the walls through the Conveyor belt is formed. The other wall can serve to support the workpieces.
  • the rollers or the conveyor belt are made of a material substantially transparent to ultrasound, preferably of plastic or rubber. This avoids unwanted echoes caused by the rolls during ultrasonic testing. It is possible to perform a particularly exact ultrasonic test.
  • a peripheral surface of the rollers or the conveyor belt may be made of plastic, rubber or silicone.
  • the peripheral surface is made of a material which ensures a frictional contact with the workpieces to be transported, even if oil is used as liquid.
  • a first ultrasonic testing device for checking for surface defects is provided in the vicinity of the transport path, attached to a first movement device which can preferably be driven by an electric motor. Furthermore, in the vicinity of the transport path, a second ultrasonic testing device attached to a second movement device, which may also be driven by an electric motor, for checking for errors included in the workpiece, may be provided.
  • the proposed Ultraschallprüf sharken may be conventional ultrasonic heads, which can be made by means of the movement means in a suitable position relative to the workpieces to be tested.
  • the movement devices are expediently driven by an electric motor. As a result, it is possible to control such a drive by means of a microprocessor.
  • suitable positions for the first and the second Ultraschallprüf can be stored.
  • a suitable position stored for each of the ultrasonic testing devices can be retrieved and adjusted quickly and automatically by means of the respective movement device.
  • the movement devices it is also possible to guide the ultrasonic testing devices along a predetermined path over the surface of the workpieces to be tested.
  • the path can run in the axial direction of the workpieces to be tested. But it can also be curved and deviate from the axial direction.
  • the choice of a suitable path depends in particular on the surface design of the workpiece to be tested.
  • the moving devices are expediently controlled by using a suitable program. This allows automated testing of rotationally symmetrical workpieces, which in particular have a non-cylindrical geometry.
  • a device for identifying faulty workpieces is provided. It is, for example, a computer with a suitable program for processing the signals supplied by the ultrasound heads. Furthermore, a device for rejecting faulty workpieces can be provided. Such a device is expediently arranged outside the container.
  • the device for separating out may be conventional electrically, hydraulically, pneumatically or magnetically drivable actuating means.
  • the means for discarding may conveniently be controlled by means of the aforementioned computer.
  • light barriers along the transport path be provided, by means of which a clear sequence of the inspected workpieces determined and a rejection as erroneously identified workpieces downstream of the Ultraschallprüf beauen can be effected.
  • a controller for automatic, preferably cyclic, transport and for controlling the movement devices is also provided.
  • the movements of the ultrasonic testing devices and the cyclic feed movements of the workpieces can be coordinated, for example by means of a computer program performed. This allows a quick and efficient inspection of the workpieces.
  • Fig. 1 to 3 is in a z. B. made of metal or plastic container 1 received a generally designated by the reference numeral 2 transport device.
  • the height of the walls of the container 1 is chosen so that the transport device 2 completely in a recorded in the container 1 liquid, for. As oil, can be submerged.
  • the transport device 2 comprises two rollers 3a and 3b, which are drivable by means of a motor 4.
  • the rollers 3a, 3b are suitably made of plastic. Your Surface can be made of rubber.
  • the reference numeral 5 denotes a device for supplying and the reference numeral 6 denotes a device for discharging rotationally symmetrical workpieces 7.
  • electromotively movable ultrasonic testing devices 9a and 9b are arranged on a frame (not shown here).
  • Each of the ultrasonic testing devices 9a and 9b is associated with a light barrier 10a and 10b. These can be conventional laser light barriers.
  • Downstream of the device 6 for discharging a device 11 for sorting out defective workpieces 7 is provided.
  • the device 11 comprises in particular two pushing means 12a and 12b, with which faulty workpieces 7 can be ejected from the flow of the removed workpieces 7.
  • the pushing means 12a, 12b may be, for example, pneumatic cylinders with push rods.
  • Fig. 2 shows a detailed view according to Fig. 1 , It can be seen that each of the rollers 3a, 3b are respectively received in bearing blocks 13a, 13b.
  • the bearing blocks 13a and 13b can be adjusted in both the horizontal and in the vertical direction.
  • the rollers 3a and 3b are connected to the engine 4 via a common V-belt 14.
  • the device 5 for feeding has a feed channel 15 whose width is adjustable by means of an angle plate 16.
  • Fig. 3 again shows in detail the device 11 for discarding.
  • rollers 3a, 3b are arranged so that their roll axes in plan view (see Fig. 5 ) form an acute angle ⁇ . Of the Apex angle ⁇ opens in the transport direction 8. A distance between the rollers 3a and 3b is chosen so that it is always smaller than the diameter of the workpieces 7 to be tested. As a result, the two rollers 3a, 3b form a conveyor trough 17th
  • roller axes of the rollers 3a and 3b are also vertically tilted by a further acute angle ⁇ against each other.
  • the angle ⁇ also opens in the transport direction 8.
  • FIGS. 7 and 8 show in detail one of the ultrasonic testing equipment, here the ultrasonic testing device 9a. It comprises a clamping device 18 for receiving an ultrasonic test head 19.
  • the clamping device 18 is rotatable about an axis of rotation extending substantially parallel to the roller axes.
  • a carrier 20 accommodating the clamping device 18 can be adjusted with a suitable drive device (not shown here) in the vertical direction as well as in a horizontal direction perpendicular to the roller axes.
  • suitable electric motors can be provided which are automatically controllable by means of a control device (not shown here).
  • the light barrier 10a is arranged so that the workpieces 7 can be counted automatically.
  • Fig. 9 shows a cross-sectional view along the section line B-B '.
  • the means 6 for discharging consists essentially of a conveyor belt 21 on whose upper side by two further angle plates 22 a discharge channel 23 is formed.
  • the function of the first device is the following:
  • the rollers 3a and 3b are driven by the motor 4 at the same rotational speed. They rotate in the same direction.
  • the workpieces 7 are transported in rotation in the transport channel 17 along the transport direction 8.
  • the workpieces 7 are guided along the transport path to the ultrasonic testing devices 9a and 9b.
  • the ultrasonic testing devices 9a and 9b the workpieces 7 are checked for surface defects as well as errors included in the workpieces 7.
  • the order of the supplied workpieces 7 can be determined. This makes it possible to selectively reject workpieces 7 identified as defective by means of the ejection means 12a and 12b.
  • the proposed device it is in particular also possible to separate separately workpieces 7 with surface defects and workpieces 7 with errors trapped in the interior.
  • the identification of material defects as well as the rejection can be done automatically using a computer which is suitably programmed.
  • a second device differs from the first device substantially in that here additionally an advancing means, generally designated by the reference numeral 24, is provided for cyclically advancing the workpieces 7 in the transporting direction 8.
  • the second device is particularly suitable for testing of executed in the form of barrel rollers workpieces 7.
  • the feed means 24 comprises two rollers 25 around which a belt 26 rotates. At least one of the rollers 25 is drivable by means of a (not shown here) cyclically operable drive means.
  • the belt 26 has at its intervals on its side facing away from the rollers 25 outside pushing means 27.
  • the advancing means 24 is arranged with respect to the rollers 3a, 3b so that the pushing means 27 engage through a gap formed between the rollers 3a, 3b.
  • the thrust means 27 are dimensioned in their length so that they rest against a base / top surface of the workpieces 7. As a result, movement of the workpieces 7 in the transporting direction 8 can be forced by a movement of the pushing means 27.
  • the rollers 3a, 3b may be arranged horizontally and parallel to each other. The tilting of the axes of the rollers 3a, 3b relative to each other, which is provided in the first device, is not absolutely necessary here.
  • rollers 25 and the belt 26 may be used instead of other suitable means.
  • rollers 25 toothed pulleys, pulleys, pinions and the like. Be used instead of the belt 26, a V-belt, timing belt or chain or the like may be used.
  • the function of the second device is as follows:
  • the workpieces 7 are fed by means of the means 5 for feeding, similar to the first device. They are rotated by the rollers 3a, 3b. The workpieces 7 are at their base or top surface of a pushing means 27 at. An undesired movement of the workpieces 7 in or against the transport direction 8 is thus avoided. To ensure this safely, the pushing means 27 can do so be spaced apart that the distance is slightly greater than an axial length of the workpieces 7.
  • the workpieces 7 are transported by means of the feed means 24 cyclically in the transport direction 8. They are checked by means of the ultrasonic probes 19 for errors. For this purpose, the ultrasonic probes 19 are automatically moved at a predetermined speed and along a predetermined path along the surface of the workpieces 7 to be tested.
  • the ultrasonic probes are attached to a suitable electromotive operable movement device.
  • a suitable electromotive operable movement device During the examination of the workpieces 7, both the ultrasonic probes 19 and the workpieces in turn dip into a liquid, for example oil, as the coupling medium.
  • the removal of the inspected workpieces 7 can be carried out analogously as in the first device.
  • FIGS. 13 and 14 show a third device according to the invention.
  • a conveyor trough 17 formed by a first wall 28, which is formed for example of a plastic plate or the like.
  • the first wall 28 is inclined. Attached thereto are further rollers 29, around which a further conveyor belt 30 rotates. One of the other rollers 29 is continuously driven (not shown here).
  • a conveying side of the conveyor belt 30 forms a second movable wall of the conveyor trough 17.
  • This second movable wall is expediently perpendicular to the first wall 28.
  • the feed means 24 already mentioned above is provided.
  • the advancing means 24 is arranged so that the thrust means 27 engage from above into the conveyor trough 17 and reach close to the first wall 28.
  • the workpieces 7 are perpendicular with their axis of rotation taken to the transport direction 8 in the conveyor trough 17.
  • the function of the third device is as follows:
  • the workpieces 7 are supplied with suitable means for feeding the conveyor trough 17 at a first end.
  • the device for feeding can be similar to that in the Fig. 1 be formed device shown, in which case, however, the workpieces are supplied standing.
  • the workpieces 7 Once the workpieces 7 have been supplied to the conveyor trough 17, they are guided by the conveyor belt against the pushing means 27. Due to the continuous movement of the conveyor belt 30, the workpiece 7 is set in a rotational movement about its axis of rotation.
  • the feed means 24 the workpiece 7 is cyclically transported along the transport path formed by the conveyor trough 17.
  • the ultrasonic probes 19 are provided in predetermined positions. They are moved by means of a movement device for testing the workpieces 7 over their surface along a predetermined path.
  • a plurality of ultrasonic probes 19 may be provided for carrying out different ultrasonic testing methods.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
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  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
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Claims (29)

  1. Procédure de contrôle non destructif de pièces à usiner (7) symétriques en rotation au moyen d'ultrasons selon les opérations suivantes:
    alimentation successive des pièces à usiner (7) vers un dispositif de transport (2) immergé dans un liquide,
    transport des pièces à usiner (7) au moyen du dispositif de transport (2) sur la longueur du trajet de transport, suivant lequel les pièces à usiner (7) accomplissent une rotation au moyen d'un dispositif de rotation,
    contrôle des pièces à usiner (7) au moyen d'ultrasons, suivant lequel les pièces à usiner (7) accomplissent une rotation autour de leur axe et consécutivement
    retrait des pièces à usiner (7) du dispositif de transport (2),
    caractérisée en ce que
    les pièces à usiner (7) sont transportées dans une goulotte de transport (17) réalisée par deux rouleaux (3a, 3b) disposés côte à côte, où les rouleaux sont entraînés dans le même sens au moyen du dispositif de rotation, où une inclinaison (β) et/ou un angle d'ouverture (α) des axes de rouleaux est réglé de façon telle que les pièces à usiner (7) sont transportées sur la longueur du trajet de transport à une vitesse prédéfinie.
  2. Procédure selon la revendication 1, selon laquelle les pièces à usiner (7) sont alimentées gravitationnellement.
  3. Procédure selon l'une des revendications précédentes, selon laquelle plusieurs pièces à usiner (7) sont transportées simultanément dans la goulotte de transport (17).
  4. Procédure selon l'une des revendications précédentes, selon laquelle les pièces à usiner (7) sont transportées de manière cadencée sur la longueur du trajet de transport.
  5. Procédure selon l'une des revendications précédentes, selon laquelle les pièces à usiner (7) sont transportées de manière cadencée par un moyen de translation (27) s'engageant dans la goulotte de transport (17).
  6. Procédure selon l'une des revendications précédentes, selon laquelle les pièces à usiner (7) sont transportées sur la longueur du trajet de transport dans un sens de transport (8) disposé parallèlement au sens axial des pièces à usiner (7).
  7. Procédure selon l'une des revendications précédentes, selon laquelle les pièces à usiner (7) sont transportées essentiellement de manière coaxiale par rapport aux rouleaux (3a, 3b) dans la goulotte de transport (17).
  8. Procédure selon l'une des revendications précédentes, selon laquelle les pièces à usiner (7) s'appliquent par friction aux rouleaux (3a, 3b) et, par la rotation de ces derniers, accomplissent une rotation autour de leur axe.
  9. Procédure selon l'une des revendications précédentes, selon laquelle les pièces à usiner (7) sont soumises à un contrôle de défauts de surface sur le trajet de transport au moyen d'un premier dispositif de contrôle à ultrasons (9a).
  10. Procédure selon l'une des revendications précédentes, selon laquelle les pièces à usiner (7) sont soumises à un contrôle de défauts internes à la pièce à usiner (7) sur le trajet de transport au moyen d'un deuxième dispositif de contrôle à ultrasons (9b).
  11. Procédure selon l'une des revendications précédentes, selon laquelle des pièces à usiner (7) défectueuses sont identifiées et triées consécutivement.
  12. Procédure selon l'une des revendications précédentes, selon laquelle les pièces à usiner (7) sont retirées au moyen d'un convoyeur (6), de préférence à entraînement par électromoteur, puis soulevées du liquide.
  13. Procédure selon l'une des revendications précédentes, selon laquelle les pièces à usiner (7) identifiées comme défectueuses sont triées après les avoir soulevées du liquide.
  14. Dispositif pour le contrôle non destructif de pièces à usiner (7) symétriques en rotation
    avec un réservoir (1) destiné à recueillir un liquide,
    un dispositif de transport (2) prévu dans le réservoir (1) pour le transport des pièces à usiner (7) sur la longueur d'un trajet de transport,
    un dispositif de rotation destiné à la rotation des pièces à usiner (7) autour de leur axe et
    un dispositif (9a, 9b) destiné au contrôle des pièces à usiner (7) en rotation au moyen d'ultrasons,
    caractérisé en ce que
    le dispositif de transport (2) présente deux rouleaux (3a, 3b) disposés côte à côte constituant une goulotte de transport (17), et que le dispositif de rotation est un dispositif d'entraînement (4, 14) pour une rotation de même sens des rouleaux (3a, 3b), les axes de rouleaux présentant une inclinaison (β) réglable et/ou un angle d'ouverture (α) réglable.
  15. Dispositif selon la revendication 14, dans lequel un équipement (5) destiné à l'alimentation successive des pièces à usiner (7) vers le dispositif de transport (2) et/ou un équipement (6) destiné au retrait des pièces à usiner (7) du dispositif de transport (2) est/sont prévu(s).
  16. Dispositif selon la revendication 15, dans lequel l'équipement (5) destiné à l'alimentation des pièces à usiner (7) présente un canal (16) en pente incliné vers le dispositif de transport (2).
  17. Dispositif selon l'une des revendications 14 à 16, dans lequel la goulotte de transport (17) est telle qu'elle peut contenir simultanément plusieurs pièces à usiner (7).
  18. Dispositif selon la revendication 17, dans lequel le dispositif de rotation est tel qu'il permet aux pièces à usiner (7) d'accomplir une rotation simultanée.
  19. Dispositif selon l'une des revendications 14 à 18, dans lequel un équipement destiné au transport cadencé des pièces à usiner (7) est prévu sur la longueur du trajet de transport.
  20. Dispositif selon la revendication 19, dans lequel l'équipement destiné au transport cadencé présente un moyen de translation (27) s'engageant dans la goulotte de transport (17).
  21. Dispositif selon l'une des revendications 14 à 20, dans lequel un écartement prévu entre les surfaces circonférentielles des rouleaux (3a, 3b) est réglable.
  22. Dispositif selon l'une des revendications 14 à 21, dans lequel les rouleaux (3a, 3b) sont réalisés en un métal essentiellement transparent pour ultrasons, de préférence en matière plastique ou en caoutchouc.
  23. Dispositif selon l'une des revendications 14 à 22, dans lequel une surface circonférentielle des rouleaux (3a, 3b) est réalisée en matière plastique, en caoutchouc ou en silicone.
  24. Dispositif selon l'une des revendications 14 à 23, dans lequel à proximité du trajet de transport un premier dispositif de contrôle à ultrasons (9a) monté sur un premier dispositif de déplacement, de préférence à entraînement par électromoteur, est prévu pour le contrôle des défauts de surface.
  25. Dispositif selon l'une des revendications 14 à 24, dans lequel à proximité du trajet de transport un deuxième dispositif de contrôle à ultrasons (9b) monté sur un deuxième dispositif de déplacement, de préférence à entraînement par électromoteur, est prévu pour le contrôle des défauts internes à la pièce à usiner (7).
  26. Dispositif selon l'une des revendication 14 à 25, dans lequel un équipement est prévu pour l'identification des pièces à usiner (7) défectueuses.
  27. Dispositif selon l'une des revendications 14 à 26, dans lequel un équipement (11, 12a, 12b) est prévu pour trier les pièces à usiner (7) défectueuses.
  28. Dispositif selon la revendication 27, dans lequel l'équipement destiné au tri (11, 12a, 12b) est placé à l'extérieur du réservoir (1).
  29. Dispositif selon l'une des revendications 25 à 28, dans lequel est prévue une commande pour le transport automatique, de préférence cadencé, et pour la commande des dispositifs de déplacement.
EP04023873A 2003-12-08 2004-10-07 Procédé et dispositif pour l'éxamination non-destructive, ultrasonore des pièces symétriques rotatives Expired - Lifetime EP1542004B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE2003157596 DE10357596B3 (de) 2003-12-08 2003-12-08 Verfahren und Vorrichtung zur zerstörungsfreien Prüfung rotationssymmetrischer Werkstücke
DE10357596 2003-12-08
DE200410023871 DE102004023871A1 (de) 2004-05-12 2004-05-12 Verfahren und Vorrichtung zur zerstörungsfreien Prüfung rotationssymmetrischer Werkstücke
DE102004023871 2004-05-12

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EP1542004A1 EP1542004A1 (fr) 2005-06-15
EP1542004B1 true EP1542004B1 (fr) 2010-12-08

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EP04023873A Expired - Lifetime EP1542004B1 (fr) 2003-12-08 2004-10-07 Procédé et dispositif pour l'éxamination non-destructive, ultrasonore des pièces symétriques rotatives

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EP (1) EP1542004B1 (fr)
AT (1) ATE491152T1 (fr)
DE (1) DE502004011971D1 (fr)

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Publication number Priority date Publication date Assignee Title
JP6437758B2 (ja) * 2014-08-12 2018-12-12 Ntn株式会社 等速自在継手の接合タイプ外側継手部材の検査装置
CN104406817A (zh) * 2014-11-06 2015-03-11 攀钢集团矿业有限公司 矿粉取样设备、矿粉输送线和矿粉生产系统

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2525305A (en) * 1949-08-04 1950-10-10 Crucible Steel Co America Apparatus for feeding elongated stock to and from fabricating units
US2758706A (en) 1955-03-31 1956-08-14 Frank B Quinlan Inspection conveying apparatus
US3708079A (en) * 1971-02-12 1973-01-02 Custom Machine Inc Support for rotating and advancing cylindrical members
JPS63243751A (ja) * 1987-03-31 1988-10-11 Ngk Insulators Ltd 軸受用転動体の超音波探傷検査方法、探傷検査用治具及び探傷検査装置
JPH03115970A (ja) 1989-09-29 1991-05-16 Ngk Insulators Ltd ボールの自動超音波探傷検査装置
WO2000043769A1 (fr) * 1999-01-22 2000-07-27 Cfi Ceramics For Industry Gmbh & Co. Kg Dispositif et procede pour le controle par ultrasons d'elements de roulement

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ATE491152T1 (de) 2010-12-15
DE502004011971D1 (de) 2011-01-20
EP1542004A1 (fr) 2005-06-15

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